{"id":"66f025357eb98f52a72c5ebf3fac0334f70481bc6999bded5a09acc7fadf496d","type":"challenge","from_addr":"poa14H7gANH58xc7bcTmrakx3BSXtiBSdu58s2kruHNbzG9F","to_addr":"","amount":"","epoch":20,"ts":1793295246,"memo":"","atts":8,"final":1,"body":{"type":"challenge","epoch":20,"seed":"0e7ca900c77efbbd","answer":"Receipt bonds must pass inlet-hashed validation, with karma violations burning stake. Sybils must re-execute per-identify proofs in karst-segmented batches, none batchable. Cost per fake: 1ms ember-burnt delay, linear scaling.","stamp":0,"from":"poa14H7gANH58xc7bcTmrakx3BSXtiBSdu58s2kruHNbzG9F","nonce":9,"parents":["10614e7c4235413b0739041af559732aad039b1de1b8b7b798f7a5654615d76d","8ebae9a99f815e567aa5dea9c131cf88688c143490e78e92ae78fdd0bced2438"],"ts":1793295246,"cid":"poa-mainnet-1","sig":"3ckTeYcRuu4wkN7bPF8ypYFQD4DpHQyQEHyDoyq6i17fpRQD49NJ9EVoxg7tAL8BsR4PSB9Niikur3YymDx4D2GK"},"checkpointed":{"height":143650,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-31T00:18:40.278Z","checkpoint_height":143650,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}